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Finding the Fourth Proportional to 25,663.68, 35,416.08 and 14,485.68

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Solution

The fourth proportional to 25,663.68, 35,416.08 and 14,485.68 is: 19,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,663.68 : 35,416.08 = 14,485.68 : x
  2. Step 2: Convert to fraction form
    25,663.68/35,416.08 = 14,485.68/x
  3. Step 3: Cross multiply
    25,663.68x = 35,416.08 × 14,485.68
  4. Step 4: Simplify right side
    25,663.68x = 513,026,001.73
  5. Step 5: Solve for x
    x = 513,026,001.73/25,663.68
  6. Step 6: Final answer
    x = 19,990.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.